package com.wsg.lightaccounting.Fragment;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RadioButton;

import com.wsg.lightaccounting.R;


/**
 * A simple {@link Fragment} subclass.
 * Activities that contain this fragment must implement the
 * {@link ChartFragment.OnFragmentInteractionListener} interface
 * to handle interaction events.
 * Use the {@link ChartFragment#newInstance} factory method to
 * create an instance of this fragment.
 */
public class ChartFragment extends Fragment implements View.OnClickListener{
    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;

    private OnFragmentInteractionListener mListener;

    private LineFragment lineFragment;
    private CircularFragment circularFragment;

    private FragmentManager fm;

    private RadioButton line,circular;

    public ChartFragment() {
        // Required empty public constructor
    }

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment ChartFragment.
     */
    // TODO: Rename and change types and number of parameters
    public static ChartFragment newInstance(String param1, String param2) {
        ChartFragment fragment = new ChartFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        fm = this.getChildFragmentManager();
        if (savedInstanceState != null) {
            lineFragment = (LineFragment) fm.findFragmentByTag("line_fragment");
            circularFragment = (CircularFragment) fm.findFragmentByTag("circular_fragment");
        }
        View view = inflater.inflate(R.layout.fragment_chart, container, false);
        initView(view);
        return view;
    }
    private void initView(View view){
        line = (RadioButton) view.findViewById(R.id.line);
        circular = (RadioButton) view.findViewById(R.id.circular);

        line.setOnClickListener(this);
        circular.setOnClickListener(this);

        switchFragment(true);
        switchFragment(false);

        switchFragment(line.isChecked());
    }

    @Override
    public void onResume() {
        super.onResume();
        updateUI();
    }

    @Override
    public void onHiddenChanged(boolean hidden) {
        super.onHiddenChanged(hidden);
        updateUI();
    }

    private void hideFragment(FragmentTransaction transaction)
    {
        if (lineFragment != null) {
            transaction.hide(lineFragment);
        }

        if (circularFragment != null) {
            transaction.hide(circularFragment);
        }
    }

    private void switchFragment(boolean fragment){
        FragmentTransaction transaction = fm.beginTransaction();
        String tag = "";
        hideFragment(transaction);
       if (fragment) {
                if (lineFragment == null) {
                    lineFragment = new LineFragment();
                    tag = "line_fragment";
                    transaction.add(R.id.fragment,lineFragment,tag);
                }
                else {
                    transaction.show(lineFragment);
                }
       }
       else{
                if (circularFragment == null) {
                    circularFragment = new CircularFragment();
                    tag = "circular_fragment";
                    transaction.add(R.id.fragment,circularFragment,tag);
                }
                else {
                    transaction.show(circularFragment);
                }
        }
        transaction.commit();
    }
    // TODO: Rename method, update argument and hook method into UI event
    public void onButtonPressed(Uri uri) {
        if (mListener != null) {
            mListener.onFragmentInteraction(uri);
        }
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof OnFragmentInteractionListener) {
            mListener = (OnFragmentInteractionListener) context;
        } else {
            throw new RuntimeException(context.toString()
                    + " must implement OnFragmentInteractionListener");
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }

    @Override
    public void onClick(View v) {
        switch (v.getId())
        {
            case R.id.line:
                switchFragment(line.isChecked());
                break;
            case R.id.circular:
                switchFragment(line.isChecked());
                break;
            default:
                break;
        }
    }
    /**
     * This interface must be implemented by activities that contain this
     * fragment to allow an interaction in this fragment to be communicated
     * to the activity and potentially other fragments contained in that
     * activity.
     * <p>
     * See the Android Training lesson <a href=
     * "http://developer.android.com/training/basics/fragments/communicating.html"
     * >Communicating with Other Fragments</a> for more information.
     */
    public interface OnFragmentInteractionListener {
        // TODO: Update argument type and name
        void onFragmentInteraction(Uri uri);
    }

    private void updateUI(){
        lineFragment.updateUI();
        circularFragment.updateUI();
    }
}
